FSB downclock mod on the intel GL960 and GL40 --- useful info for PLL Modders

thanks for information, maybe I will get X9100 and OC it using ThrottleStop like darnok44 said.

In downclocked fsb,
Is it stable if X9100 increase multiplier up to 18 (3.6Ghz)?

 

I just upgraded my old Dell Vostro 1500(PM965) with a cheap X9100 from China and the 1066->800 pinmod.
3.4 GHz at 1.25V seems to be the stable maximum for useful usage, tested with prime95. Although running SuperPi benchmarks at 4.0 GHz was possible with a huge voltage increase to 1,3875V, not prime-stable.

 

Hey I know this post is super old but I am trying to do this BSEL MOD on a intel P9700 core 2 duo 28w 1066mhz fsb and the pictures are no longer visible so I dont know which pins to mod. I want to put the processor into a Dell D830

 

Wow, Thats a good news, 3.4Ghz is so high for cheap x9100 than buy expensive x9000...
I cant wait my x9100 come to my country...
Thanks

 

I also could't wait for it. But then I was quite disappointed when the screen stayed black and nothing happened.
Luckily I found this thread

Temps at 4 GHz were over 100°C.
3.4 GHz leads to 85°C.

 

@chuck:
There are still some photos left. For example in this thread(see quote below).

I also remember a nice one from "Berlinmodder"(or similar) in a thread about modding a huge 18" or 20" hp-laptop.
He used a single wire from a speaker cable, isolation and fixing it with TESA(transparent adhesive tape). It worked for me as well.

The P9700 will run with only 2.1 GHz. I recommend getting a X9100 because it is very easy to put it back to a reasonable frequency.

 

It's @RickiBerlin with a 20.1" HP HDX Dragon.

I think that the picture of my setup is still up a few pages back. I've used Kapton tape.

 

Hi Guys

I've got a Sony VGN CR11S, with the original spec.

Screen size
14.1"
RAM 2GB of Memory
Processor speed 1.8 GHz
Processor series Core 2 Duo
Processor number T7100
Screen Resolution (pixels) 1280 x 720 (WXGA)
Operating system Windows Vista Home Premium
Hard disk capacity 120GB Storage
Number of cores Dual Core Processor
Processor brand Intel
Number of USB ports 3
Connections Firewire
Connections Bluetooth
Connections Wireless
Built-in disc drive DVD writer
Card reader Multi Card Reader
Battery life 3.5 hours of battery
Weight (kg) 2.5
Graphics card brand ATI
Graphics card model number Intel GMA X3100
Type of hard drive Hard Disk Drive
Chipset brand Intel
Chipset series PM965
Aspect ratio 16:10
Width in cm 33.5cm wide
Depth in cm 24.9cm deep
Release date 8 Aug 2007

I want to upgrade the RAM, there are two slots. (I'm looking at 4GB, 800MHz)
I want to upgrade the CPU, to something that will make a difference.
I want to upgrade the hard disk to an SSD.

These are a selection of CPU's

T8300, 2.4 GHz, FSB 800 MHz, L2 3 MB
T9300, 2.5 GHz, FSB 800 MHz, L2 6 MB
T9500, 2.6 GHz, FSB 800 MHz, L2 6 MB

X7800, 2.6 GHz, FSB 800 MHz, L2 4 MB
X7900, 2.8 GHz, FSB 800 MHz, L2 4 MB
X9000, 2.8 GHz, FSB 800 MHz, L2 6 MB

I would like to upgrade to a X9100, 3.06GHz, FSB 1066 MHz, L2 6M.

Many thanks in advance.

 

It worked great! X9100 worked great in VAIO VGN FZ-150E using BSEL mod (2 wire)

without TS, it speed only 2.2 Ghz
with TS, max multiplier is 18 (3.6 Ghz) in 1.2875V , its stable in prime95, idle temp is 43-50
It will BSOD when I try to increase voltage to 1.3V++ so its not possibly to get 4 Ghz

I dont know why multiplier only reach 6 when laptop adaptor unplugged..
Can I make it multiplier stay in 18 althought laptop adaptor unplugged?

But It doesnt matter, I still really love it.
x9100 with ssd, my old laptop can do competition with new laptop

here the picture to see detail :
(cpuz show wrong description)

 

@rebel11
u can use x9100 in your laptop using BSEL mod. It will work great

 

Guys, I'm from a big but poor country of Russia. I ordered from China x9100 for $ 7, it's already coming to me. but pictures of how exactly to do the modification is not preserved. Someone please throw off the link to a photo or any info. my old man FS amilo pi 2530 is weak, who knows how much longer this will last with him....

 

You have photo here. Make only jumper in right down corner, marked with red line. The other one is probably VID mod, You don't need to do it.

 

OOO thank you! I looked through the whole topic, and on other sites too, but not seen in this photo. Please tell me what you connected the pins on the socket? I wanted to use the wire from a network cable, I've done it before on the old Athlone. The Chinese have only processors steppig C0, not whether it will burn the motherboard of the laptop? I want to lower the voltage of the processor and set the frequency not higher than 3 GHz, what is the temperature of the x9100 in the drain?

 

Hi everybody! I enjoyed this very nice topic)
I'm trying to install core2quad q9100 to my Gigabyte E1500 laptop:
- GL40 chipset
- DDR2 2GB PC2-6400
- BIOS ver. 1.10GB
- Old cpu is Pentium T4500
Tell me please what am I doing wrong. Laptop turn on cooler, cpu starts to heat then laptop turns off.
It even works ok with my jumpers and old cpu.


old cpu

Spoiler

new cpu

Spoiler

 

Hello, I am new with my laptop HP Compaq Presario cq70 (it mixes of cq60, I had to do a change of motherboard to him) my chipset is the GL40 with version of bios F.65 with date 12/15/2010, I am interested in changing the Dual processor Core into better someone, for example a Core 2 Extreme (processor QX9300), me the plate was supporting it or I have to modify something?, I have read but I have not still had it very clear and the images cannot be seen, seem not to be available, since these modifications are done?, thank you

 

Update to: "Toshiba Equium L40: tested by naton with a T4200. The laptop froze at the BIOS splash screen. This indicates that the BIOS doesn't support the latest generation of Core 2 Duo."

I have a Toshiba l40-18l (psl48e) which I think is pretty much the same pc. If you update bios to v2.0 you can use a t7300 like me. I also heard about people using T9300 and t9500.

 

From what I read in the link, you will need a lot of tweeking, but I am not sure. https://forum.thinkpads.com//viewtopic.php?f=29&t=110620

 

Hi everyone, anyone got a luck with GL40?

Also I have a problem - instead of all those pictures I can see only small icons here on this forum. Is it a normal thing?

 

Hi, of course it work with GL40, as long as bios support Penryn cores of new cpu. Check first page with examples. For the actual photo and instruction check my previous post: FSB downclock mod on the intel GL960 and GL40 --- useful info for PLL Modders

 

Is it possible to start P8800 on GL40 (Toshiba l305-s5919) with pinmode like on pictures above?

 

Hi
Check first page of this thread. In the examples it can be found toshiba l305 so BSEL mod is clearly possible. I'm not sure about bios support cos P8800 might need quite recent microcodes to work well 100%. Even without newest bios should boot and work cos it's Penryn core anyway.

 

For BSEL mod I need to make a jumper between A20 and B23? Have I left jumper with CPU or what is the procedure? As I understand
P8800 will work at 2000ghz at BSEL mod?

 

Yes, you need to make this jumper and it will force cpu to work with FSB 200MHz which translate to 2GHz speed.

 

In this way it is better to use cheap T8300 at 2,3GHz and thats all or try Q9100 at 1,7GHz? Have I upgrade cooler system in Toshiba l305-s5919 for 45w Q9100?

 

Yeah, it's better and easier to just use native 200MHz T8300 or T9500. If you want to play with this mod you can buy x9100 too, which isn't that expensive those days either and overclock it with multiplier using ThrlottleStop for example. I don't know really if quad clocked that low would be good idea. Someone would have to make some tests and comparisons.

 

And what about cooling system? Have I modify it in Toshiba l305-s5919 cause 45w it isnt 35w?

 

Hi
Guys, check firstly first page of this thread. It will give you some answers for your questions, like D830 mod. Quads most likely will not work cos they need additional circuitry which are rerly find on motherboards designed for dual CPU.

 

With the mod to place a 1066fsb processor in a santa rosa socket of 800fsb is it necessary to perform a physical modification of the 1066fsb processor? How is the cutting of some pines or just placing the cables in the socket?

I hope you help me I want to make this mod in an Emachine e528 computer with Intel Core Celeron 900 2.20GHZ 800fsb processor, and I would like this very informative before carrying out this test to avoid any kind of error in carrying out this procedure

 

Just to shed a lot of light on this topic.
I have a Santa Rosa platform that is PM965. I've installed a 1066MHz CPU and modded just 1 pin of PM965 to make it think it's working with a 800MHz. Now my PM965 is working at 1066 fine, no problem. My idea is that any chipset that officially supports 800MHz CPUs can work at 1066 as well. So I think this topic on downclock for Santa Rosa and Montevina platforms is useless already

 

Please i need u metod for modifid my lapto give me

 

What's your laptop?

My HP HDX9000 is running X9100 fine, so your M4300 should work be working fine too. But you will have to get a 800MHz RAM stick first, if you don't have it yet. What is your config now?

 

[QUOTE = "remdale, post: 10902744, miembro: 692711"] ¿Cuál es tu computadora portátil?

Mi HP HDX9000 funciona bien con X9100, por lo que su M4300 también debería funcionar bien. Pero primero tendrás que conseguir una memoria RAM de 800MHz, si aún no la tienes. ¿Cuál es tu configuración ahora? [/ QUOTE]

My lapto is Emachine e528 i have one processador x9100, i buy he for paypal and not working for pll dowload i testest other procesador 1066Mhz and used mod he is working only 800

 

i have 2 processador only 1066mhz and extreme edition x9100 no found my configuration is
https://ibb.co/cchKC4W
https://ibb.co/d6nB2wg
https://ibb.co/wBthx2v
https://ibb.co/yNf18y0
https://ibb.co/m6Js8y4

 

My computer is Emachine e528

 

Your chipset is GL40. FSB:RAM divider now is 1:2. You will have to buy 1066 RAM to make it work because of the divider.
Do you have schematics for your laptop? I tried to find it, but no success.

 

I not have one

 

Why i buy 1066 RAM? my ram is 1333Mhz only, my problem is working so 800mhz I tried modifying my clock rate and not working

 

Just found it
http://www.mediafire.com/file/5l3a9jsya8v9y55/Acer+Extensa+5235+5635+(Quanta+ZR6).pdf
Do you know how to read schematics?
Open the file with a PDF reader and search for R244 at page 2 (left bottom corner).

You need to find this resistor on the board and remove it. Then find the closest source of VCC_CORE and link it to just 1 contact pad of R244 that is closer to GL40 to provide VCC_CORE for the CPU_BSEL1 pin of GL40.

Ok, I can see it now. No need to buy extra RAM.

I was trying to follow JEDEC standards, so I flashed RAM for CL6 as it is working at 443MHz now, but something (BIOS or Chipset) is forcing RAM to work at CL5 anyway. Have not tried flashing lower values though.

EDIT: My RAM is DDR2-800

 

I have a Dell Latitude D830 (GM965), and a QX9300 on the way. I currently have a T9300 and 2x4GB DDR2-800. Can you go in to a bit more detail on what pin you modified on the chipset?

 

I hope you have its schematics already
http://www.mediafire.com/file/ek2bw86cldal21a/Dell_Latitude_D830_%28Quanta_JM7%29.pdf/file
First of all, your case is very difficult. BSEL1 pins are most likely internally connected between the CPU socket, GM965 and the clock generator. You need to isolate the BSEL1 pin on the CPU, so you have to mod the socket or remove the pin from the CPU, but you will not be able to sell it in future if you don't solder it back. If the BSEL1 pin of the socket is not wired out on the other side of the board, you will have to pull up VCC_CORE to that pin to emulate 800 FSB for the chipset and then attach VCC_CORE to GTLREF_2. Here's how it should be done http://forum.notebookreview.com/thr...s-lounge-part-2.515212/page-996#post-10885403
Moreover, you will have to edit APIC table in BIOS. Are you ok with that?

 

This is meant to be a permanent upgrade so I'll likely go the route of removing the pin as that sounds least likely to end up damaging the motherboard. Hopefully I don't break the CPU.

I don't know how to edit APIC tables, so I guess I'll add that to things I need to learn before my CPU arrives, cause I already ordered it before I posted.

I'm experienced with soldering but this is all completely new to me so I hope I'm not burdening you too much.

I've been putting off taking my motherboard completely out but I might do that today since it's never been cleaned under there in over 10 years, I'll look for the socket pins on the other side but I don't know the pinout so I'm not sure which one is BSEL1.

Edit: I took high resolution photos of the board on both sides, particularily the areas around the socket, chipset, and clock generator. I will attach them as soon as I can.

 

Alright. But I don't guarantee it will work out. I couldn't finish the QX9300 mod just due to the lack of time. But currently I'm stuck at editing ACPI tables, because the mod that worked out for Lenovo T61 doesn't work for me. So I need to find out the reason and fix that.
I hope you are good at reading schematics.
Here's a datasheet for QX9300 http://www.mouser.com/ds/2/612/intel corporation_320390-552368.pdf
You can find the BSEL1 (B23) pin at page 41

When conducting the wire between the socket holes, make sure that the wire doesn't short any other pin in the socket. After finishing the socket mod you need to figure out if the CPU works fine at 1066. It can be done even before attaching VCC_CORE to GTLREF_2. But first you need to disable multicore processing mode in BIOS if possible or use a 1066 dual core CPU instead.
If it goes well, then keep going with GTLREF_2 and ACPI tables.
I think your BIOS can be decomposed with Phoenixtool. First, find your APIC table by searching for "APIC" through the set of the decomposed files in the DUMP folder that will be created right after opening the BIOS file with that tool. Then download iasl from here https://acpica.org/sites/acpica/files/iasl-win-20151218.zip
You need iasl.exe. Start the command line, input iasl and then specify the file that you have found. Finally, you will get a .dsl file that you will be able to read. Find "Processor Local APIC" and "Local APIC NMI". They have to be 4 of each instead of just 2. Those are the parameters responsible for CPU cores. The difference between each of them is "Processor ID" and "Local APIC ID" parameters. But you will have to edit the file in a hex editor after you understand what to edit and how.
This is a serious mod, so I can try to help you if you get stuck somewhere.
You need a flash programmer just in case you mess up with BIOS

 

Here's the pictures if it's useful https://mega.nz/#!TAVA2Q6b!cLjD1yDOoGrNf-fPAQffsj5UOiFRNIh3uC2-ws15EEg

Thanks for the help, I didn't even think this was possible until I found this thread but all the original images are dead. I've seen reports of success with a D630 and D830 which gives some confidence.

Something else interesting I've seen reports that later revision chipsets in addition to accepting 8GB of RAM (which mine does), will also boot with 1066MHz CPUs without modification (although it wasn't clear if the CPU actually ran properly, it was implied that it did). So definitely the first thing I will try before making a mess is installing the CPU as-is when it arrives and seeing what happens.

 

According to the datasheet of 965 chipsets (page 225), it won't start.

So you need to do the mod. But of course you are free to try the CPU out as it is.
Unfortunately, I cannot use your picture in this case. You should take a multimeter and figure out if the BSEL1 pin is wired out on the other side of the board right under the socket. Let's hope for good

 

With how complicated this is sounding, I might end up buying a Latitude E6500 if this doesn't just work. It has a GM45 chipset and supports 1066MHz FSB CPUs natively, though it's not listed to support Core 2 Quads. It also retains almost all the desirable features I am still using this D830 because of (16:10 15.4" display, good keyboard/layout, loses dual batteries, but has LED backlit displays and a keyboard backlight).

I'm still holding out that it might actually just work because I've heard multiple reports of the later revision 965 chipsets being capable of things they are explicitly listed not to be on spec sheets. Mine boots with 8GB of RAM which is clearly above the stated maximum of 4GB, and I have a friend with an HP 8510p with a PM965 chipset he installed a Core 2 Quad in without any modification (not sure which SKU but there's only 3 AFAIK).

 

If you read the datasheet for 965 chipsets, you could understand why it supports 8GB of RAM. In actuality, the memory controller can address up to 64GB of RAM according to the information pointed at page 43. But at the same time, having a 2-channel interface it supports only 1 SO-DIMM connector and 2 ranks per channel (2 SO-DIMMs and 4 memory ranks in total) (page 65). With this configuration and due to the fact that there are just 2Gbit RAM chips on the market, the maximum possible memory support is 8GB. But not only that. If there were true 4Gbit DDR2 RAM chips, they would have 1 more address line and that would require the chipset to have it too. Therefore, the maximum RAM support is limited to 8GB.
At the time of posting the information about the chipset, most likely there were no 4GB memory modules that had been manufactured. So Intel stated the maximum RAM you could install was 4GB.

So you prefer 16:10? Why Core 2 platform?

Could you please tell me more about that? I'm using almost the same platform. BIOS in my HP HDX9000 is based on the 8510 BIOS and it's using PM965 too.

 

I already have a bunch of upgraded parts for the D830 that will transfer to the E6500 (1920x1200 panel, 8GB DDR2, upgraded WiFi card in a M.2 to mPCIe adapter), and it's a very similar laptop to what I'm familiar with and fond of with almost no downsides coming from a D830. I have a pretty limited budget for school so I wanted to go to a Core 2 Quad to eliminate any issues with video playback.

As for the 8510p, I'll have to ask him more about it, it was a few years ago, but I think he may have had a modded BIOS, I'm not sure. But I know for sure he had no hardware mods.

 

Yeah, if you install a Quad, videos should start playing flawlessly.
Yes, ask him please.
I know for sure that without powering up the other 2 cores, fully running quad is not possible. But I'm very curious about his mod.

 

Any news?